Standalone denoiser (off by default).

webrtc/modules/video_processing/video_processing.gypi

 # Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'targets': [
@@ skipping 18 matching lines @@
         'deflickering.cc',
         'deflickering.h',
         'frame_preprocessor.cc',
         'frame_preprocessor.h',
         'spatial_resampler.cc',
         'spatial_resampler.h',
         'video_decimator.cc',
         'video_decimator.h',
         'video_processing_impl.cc',
         'video_processing_impl.h',
+        'video_denoiser.cc',
+        'video_denoiser.h',
+        'util/denoiser_filter.cc',
+        'util/denoiser_filter.h',
+        'util/skin_detection.cc',
+        'util/skin_detection.h',
       ],
       'conditions': [
         ['target_arch=="ia32" or target_arch=="x64"', {
           'dependencies': [ 'video_processing_sse2', ],
         }],
+        ['target_arch=="arm" or target_arch == "arm64"', {
+          'dependencies': [ 'video_processing_neon', ],
+        }],
       ],
     },
   ],
   'conditions': [
     ['target_arch=="ia32" or target_arch=="x64"', {
       'targets': [
         {
           'target_name': 'video_processing_sse2',
           'type': 'static_library',
           'sources': [
             'content_analysis_sse2.cc',
+            'util/denoiser_filter_sse2.cc',
+            'util/denoiser_filter_sse2.h',
           ],
           'conditions': [
             ['os_posix==1 and OS!="mac"', {
               'cflags': [ '-msse2', ],
             }],
             ['OS=="mac"', {
               'xcode_settings': {
                 'OTHER_CFLAGS': [ '-msse2', ],
               },
             }],
           ],
         },
       ],
     }],
+    ['target_arch=="arm" or target_arch == "arm64"', {
+      'targets': [
+        {
+          'target_name': 'video_processing_neon',
+          'type': 'static_library',
+          'includes': [ '../../build/arm_neon.gypi', ],
+          'sources': [
+            'util/denoiser_filter_neon.cc',
+            'util/denoiser_filter_neon.h',
+          ],
+        },
+      ],
+    }],
   ],
 }